当前位置:考试网  > 试卷库  > 外语类  > 大学英语  > 大学英语六级  > Passage4 Questions16to20arebasedonthefollowingpassage: Thenewglobalsatellitecommunicationssystemswillofferthreekindsservice,whichmayoverlapinmanydifferentkindsofreceivers. VOICE.SatellitetelephoneswillbeabletomakecallsfromanywhereontheEarthtoanywhereelse.Thatcouldmakethemespeciallyusefultoremote,thirdworldvillages(someofwhichalreadyusestationarysatellitetelephones),explorersanddisaster-reliefteams.Today’smobiletelephonesdependonearth-boundtransmitters,wheretechnicalstandardsvaryfromcountrytocountry.Sobusinesstravelerscannotusetheirmobilephonesoninternationaltrips.Satellitetelephoneswouldmakethatpossible. MESSAGING.Satellitemassagershavethesameglobalcoverageassatellitetelephones,butcarrytextalone,whichcouldbeusefulforthosewithlaptopcomputers.Equippedwithasmallscreenliketoday’spapers,satellitemassagerswillalsoreceiveshortmessages. TRACKING.Voiceandmessagingsystemswillalsotelltheiruserswheretheyaretowithinafewhundredmeters.Combinedwiththemessagingservice,thelocationservicecouldhelprescueteamstofindstrandedadventurers,thepolicetofindstolencars,exporterstofollowtheprogressofcargoes,andhaulagecompaniestocheckthatdriversarenotdetouringthepub.America’smilitaryGlobalPositioningSystem(GPS)satellitewillprovidebetterpositioninginformationtoanyonewhohasareceiverfortheirsignals,butGPSdoesnotcarrymessages,sosuchareceivercannotbeusedonitsownfortrackingorrescue.Bythemid-1990s,GPSreceiverswillbeabletotellpeoplewheretheyaretowithin70metersanywhereintheworld,andtowithinameterorsoinareaswheretheserviceissupplementedbyground-basedtransmitter. 16.Globalsatellitecommunicationssystemswillbeusefulto. A.laptopcomputerusers B.remotevillages C.disaster-reliefteams D.allabove 17.Satellitetelephonewillmake. A.businesstravelersusemobilephonesoninternationaltrips B.possiblecallsfromanywhereonearthtoanywhereelse C.explorershappy D.allabove 18.Whichofthefollowingistrue? A.ThepositioningprecisionofthevoicesystemisbetterthanthatofGPS. B.ThepositioningprecisionofGPSisBetterthanthatofthevoicesystem. C.ThepositioningprecisionofthemessagingsystemisbetterthanofGPS. D.Thepositioningprecisionofvoicesystemisbetterthanthatofthemessagingsystem. 19.Whatcanwesayaboutthenewglobalsatellitecommunicationssystems? A.Theyarewidelyused. B.Theyareveryhelpful. C.Theyarecostly. D.BothAandB. 20.Whichofthefollowingmaybethebesttitleforthepassage? A.GlobalSatelliteCommunications B.NewVoiceandMessagingSystem C.NewGenerationSatellite D.AlwaysinTouch
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Passage4

Questions16to20arebasedonthefollowingpassage:

Thenewglobalsatellitecommunicationssystemswillofferthreekindsservice,whichmayoverlapinmanydifferentkindsofreceivers.

VOICE.SatellitetelephoneswillbeabletomakecallsfromanywhereontheEarthtoanywhereelse.Thatcouldmakethemespeciallyusefultoremote,thirdworldvillages(someofwhichalreadyusestationarysatellitetelephones),explorersanddisaster-reliefteams.Today’smobiletelephonesdependonearth-boundtransmitters,wheretechnicalstandardsvaryfromcountrytocountry.Sobusinesstravelerscannotusetheirmobilephonesoninternationaltrips.Satellitetelephoneswouldmakethatpossible.

MESSAGING.Satellitemassagershavethesameglobalcoverageassatellitetelephones,butcarrytextalone,whichcouldbeusefulforthosewithlaptopcomputers.Equippedwithasmallscreenliketoday’spapers,satellitemassagerswillalsoreceiveshortmessages.

TRACKING.Voiceandmessagingsystemswillalsotelltheiruserswheretheyaretowithinafewhundredmeters.Combinedwiththemessagingservice,thelocationservicecouldhelprescueteamstofindstrandedadventurers,thepolicetofindstolencars,exporterstofollowtheprogressofcargoes,andhaulagecompaniestocheckthatdriversarenotdetouringthepub.America’smilitaryGlobalPositioningSystem(GPS)satellitewillprovidebetterpositioninginformationtoanyonewhohasareceiverfortheirsignals,butGPSdoesnotcarrymessages,sosuchareceivercannotbeusedonitsownfortrackingorrescue.Bythemid-1990s,GPSreceiverswillbeabletotellpeoplewheretheyaretowithin70metersanywhereintheworld,andtowithinameterorsoinareaswheretheserviceissupplementedbyground-basedtransmitter.

16.Globalsatellitecommunicationssystemswillbeusefulto.

A.laptopcomputerusers

B.remotevillages

C.disaster-reliefteams

D.allabove

17.Satellitetelephonewillmake.

A.businesstravelersusemobilephonesoninternationaltrips

B.possiblecallsfromanywhereonearthtoanywhereelse

C.explorershappy

D.allabove

18.Whichofthefollowingistrue?

A.ThepositioningprecisionofthevoicesystemisbetterthanthatofGPS.

B.ThepositioningprecisionofGPSisBetterthanthatofthevoicesystem.

C.ThepositioningprecisionofthemessagingsystemisbetterthanofGPS.

D.Thepositioningprecisionofvoicesystemisbetterthanthatofthemessagingsystem.

19.Whatcanwesayaboutthenewglobalsatellitecommunicationssystems?

A.Theyarewidelyused.

B.Theyareveryhelpful.

C.Theyarecostly.

D.BothAandB.

20.Whichofthefollowingmaybethebesttitleforthepassage?

A.GlobalSatelliteCommunications

B.NewVoiceandMessagingSystem

C.NewGenerationSatellite

D.AlwaysinTouch

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PartIIICloze

Directions:Therearetwentyblanksinthefollowingpassage.Foreachblanktherearefourchoices.ChoosetheonethatbestfitsintothepassageandthenmarksyouranswerontheAnswerSheet.

Therearetwofactorswhichdetermineanindividual’sintelligence.Thefirstisthesortofbrainheisborn61.Humanbrainsdifferconsiderably,62beingmorecapablethanothers.63nomatterhowgoodabrainhehastobeginwith,anindividualwillhavealoworderofintelligence64hehasopportunitiestolearn.Sothesecondfactoriswhat65totheindividual—thesortofenvironmentinwhichheisbrought66.Ifanindividualishandicapped(受阻碍)67,itislikelythathisbrainwill68todevelopandhewill69attainthelevelofintelligenceofwhichheis70.

Theimportanceofenvironmentindetermininganindividual’sintelligencecanbe71bythecasehistoryoftheidenticaltwins,PeterandJohn.Whenthetwinswerethreemonthsold,theirparentsdied,andtheyareplacedin72foster(寄养)homes.Peterwasrearedbyparentsoflowintelligenceinan73communitywithpooreducational74.John,75,waseducatedinthehomeofwell-to-doparentswhohasbeentocollege.Thisenvironmental76continueduntilthetwinswere77theirlateteens,78theyweregiventeststo79theirintelligence.John’sI.Q.(智商)was125,twenty-fivepointshigherthanthe80andfullyfortypointshigherthanhisidenticalbrother.

61.A.forB.byC.withD.in

62.A.mostB.someC.manyD.few

63.A.ButB.ForC.StillD.And

64.A.ifB.thoughtC.asD.unless

65.A.refersB.appliesC.happensD.concerns

66.A.aboutB.upC.forwardD.forth

67.A.relativelyB.intelligentlyC.regularlyD.environmentally

68.A.failB.helpC.manageD.stop

69.A.everB.neverC.evenD.nearly

70.A.ableB.capableC.availableD.acceptable

71.A.demonstratedB.deniedC.neglectedD.ignored

72.A.separateB.similarC.remoteD.individual

73.A.omittedB.isolatedC.enclosedD.occupied

74.A.possibilitiesB.opportunitiesC.capacitiesD.responsibilities

75.A.moreoverB.consequentlyC.thenD.however

76.A.exceptionB.divisionC.differenceD.alteration

77.A.inB.byC.atC.for

78.A.whileB.sinceC.whenD.because

79.A.estimateB.countC.decideD.measure

80.A.averageB.commonC.usualD.ordinary

Paragraphs2and3explain________.

PartIIVocabularyandStructure

Directions:Inthisparttherearefortyincompletesentences.Eachsentenceisfollowedbyfourchoices.ChoosetheonethatbestcompletesthesentenceandthenmarkyouranswerontheAnswerSheet.

21.Agreatmanycancerscanbecuredbutonlyifbeforetheyhavebeguntospreadorcolonizeinotherpartsofthebody.

A.properlytreat

B.properlytreating

C.beingproperlytreated

D.properlytreated

22.sheisalikeablegirl,sheisverydifficulttoworkwith.

A.SinceB.HoweverC.AsfarasD.While

23.Allthetouristsgavetherobbertheirmoney.

A.frightenedB.frighteningC.frightenD.frightful

24.herage,shereallydidagoodjobinsuchashorttime.

A.GivingB.GivesC.GiveD.Given

25.Thesoldierwaswithneglectinghisduty.

A.chargedB.conductedC.chargedD.committed

26.Thereasonwhythecarstoppedwas.

A.becausetheroadwasnotgoodB.thattheroadwasnotgood

C.duetothebadroadD.becauseofthebadroad

27.You’dbetterhurry,youmightbelateforclass.

A.orB.andC.unlessD.but

28.,heperformedthetaskwithsuccess.

A.ItwasexpectedB.Whichwasexpected

C.AswasexpectedD.Thatwasexpected

29.ThedoctorfeltJohn’sarmtoifthebonewasbroken.

A.workoutB.findoutC.lookatD.seeout

30.Hejustmysuggestionatthemeetingyesterday.

A.putawayB.shutdownC.showedoffD.brushedaside

31.Thequestionatthenextmeetingremainasecret.

A.discussedB.todiscussC.tobediscussedD.beingdiscussed

32.Hislazinesshisfailureinthefinalexam.

A.gaveupB.contributedC.resultedinD.distributed

33.Theteacher’stomystatementaboutthispoetledmetoreadwidelyaboutpoems.

A.changeB.chargeC.challengeD.chance

34.Onmostofthenights,Janereadinglettersfromherboyfriend.

A.stayedoffB.stayedonC.stayedoutD.stayedup

35.Thefirst-yearstudentswerelearningformthearmyinMiyun,asuburbofBeijingnearIlived.

A.whatB.whereC.thatD.which

36.Lyndaandhundredsofyoungpeoplelikehimthepostoftypist.

A.approachedB.appliedforC.appealedtoD.approvedof

37.Anybodyisentitledtosuchbenefitofageorsex.

A.regardlessB.whetherC.inspiteD.incase

38.Inthisbuildingeachapartmentcouldafamilyofsix.

A.houseB.coverC.makeD.include

39.Itriedtogetoutofthebusiness,Ifoundimpossible.

A.whoB.whichC.thatD.what

40.Whenheexplaineditagainandagain,thestudent’spatience.

A.ranoverB.ranonC.ranoutD.ranoff

41.WhenherneighborGrandmaWangbecameill,thegirloften.

A.fittedinB.workedoutC.heldbackD.helpedout

42.Ifyoureallywanttoapplyforthedangerousjob,Iwon’t,thoughtIthinkit’sacrazyidea.

A.stoodinyourwayB.standontheway

C.standinyourwayD.standbytheway

43.Hewastryingtoread;,thephonekeptringing.

A.meanwhileB.thenC.laterD.afterwards

44.Iamoutofthosepeoplewholikeastrenuous(费力的)holiday;Ibelievein.

A.tookiteasyB.takeniteasy

C.takingiteasyD.takingiteasily

45.Thepolicematchedthefingerprintsandfoundtheywere.

A.equivalentB.identicalC.similarD.equal

46.Formally,intheUnitedStates,manynursesworkedasprivatedutynursesinhospitals.

A.otherthanB.morethanC.lessthanD.ratherthan

47.Ifyoudon’tmind.Idomyhomeworkthanplaycardswithyou.

A.hadbetterB.preferC.wouldratherD.wouldlike

48.Theirideawastogetustothestrikeatonce.

A.callatB.calloffC.callinD.callfor

49.MycarsoIhadtocomebybus.

A.felldownB.brokedownC.felloverD.turnedaway

50.Icouldtellhewassurprisedfromtheonhisface.

A.appearanceB.sightC.expressionD.explanation

51.Whichis,NorthAmericaorSouthAmerica?

A.biggestB.thebiggestC.morebiggestD.bigger

52.Youshouldobservecarefullyhowtheaudiencehisspeech.

A.reachtoB.refertoC.reacttoD.relateto

53.Thesefarmersgotagoodharvestlastyear,sotheyabigsumofmoneyfornewfarmmachines.

A.setasideB.setaboutC.setupD.setback

54.Oneofmysayingsis“wherethereisawill,thereisaway.”

A.likelyB.favorableC.alikeD.favorite

55.Allisacontinuoussupplyoffueloil.

A.whatisneededB.thatisneeded

C.thethingisneededD.fortheirneeds

56.Thehighincometaxisharmfulitmaydiscouragepeoplefromtryingtoearnmore.

A.inthatB.thatC.inwhichD.which

57.Anewtechniqueout,theyieldincreasesby20%.

A.havingworkingB.havingbeenworked

C.atalossD.forgood

58.Thebirdflewintotheairandwassoon.

A.outofsightB.inahurryC.atalossD.forgood

59.ItisdecidedthatheforabustomeettheguestsfromBeijing.

A.callB.callsC.arrangeD.arranges

60.Iknowit’snotimportantbutIcan’thelpaboutit.

A.tothinkB.thinkingC.andthinkD.beingthought

Wecanbeginourdiscussionof“populationasglobalissue”withwhatmostpersonsmeanwhentheydiscuss“thepopulationproblem”:toomanypeopleonearthandatoorapidincreaseinthenumberaddedeachyear.Thefactsarenotindispute,Itwasquiterighttoemploytheanalogythatlikeneddemographicgrowthto“along,thinpowderfusethatburnssteadilyandhaltinglyuntilitfinallyreachesthechargeandexplodes.”

Tounderstandthecurrentsituation,whichischaracterizedbyrapidincreasesinpopulation,itisnecessarytounderstandthehistoryofpopulationtrends.Rapidgrowthisacomparativelyrecentphenomenon.Lookingbackatthe8,000yearsofdemographichistory,wefindthatpopulationshavebeenvirtuallystableorgrowingveryslightlyformostofhumanhistory.Formostofourancestors,lifewashard,oftennasty,andveryshort.Therewashighfertilityinmostplaces,butthiswasusuallybalancedbyhighmortality.Formostofhumanhistory,itwasseldomthecasethatoneintenpersonswouldlivepastforty,whileinfancyandchildhoodwereespeciallyriskyperiods.Often,societieswereincleardangerofextinctionbecausedeathratescouldexceedtheirbirthrates.Thus,thepopulationproblemthroughoutmostofhistorywashowtopreventextinctionofthehumanrace.

Thispatternisimportanttonotice.Notonlydoesitputthecurrentproblemsofdemographicgrowthintoahistoricalperspective,butitsuggeststhatthecauseofrapidincreaseinpopulationinrecentyearsisnotasuddenenthusiasmformorechildren,butanimprovementintheconditionsthattraditionallyhavecausedhighmortality.

Demographichistorycanbedividedintotwomajorperiods:atimeoflong,slowgrowthwhichextendedfromabout8,000BC.tillapproximatelyAD.1650.Inthefirstperiodofsome9600years,thepopulationincreasedfromsome8millionto500millionin1650.Between1650andthepresent,thepopulationhasincreasedfrom500milliontomorethan4billion.Anditisestimatedthatbytheyear2000therewillbe6.2billionpeoplethroughouttheworld.Onewaytoappreciatethisdramaticdifferenceinsuchabstractnumbersistoreducethetimeframetosomethingthatismoremanageable.Between8000BCand1650,anaverageofonly50,000personswasbeingaddedannuallytotheworld’spopulationeachyear.Atpresent,thisnumberisaddedeverysixhours.Theincreaseisabout80,000,000personsannually.

1.Whichofthefollowingdemographicgrowthpatternismostsuitableforthelongthinpowderfuseanalogy?

A.Avirtuallystableorslightlydecreasingperiodandthenasuddenexplosionofpopulation.

B.Aslowgrowthforalongtimeandthenaperiodofrapid,dramaticincrease.

C.Toomanypeopleonearthandafewrapidincreaseinthenumberaddedeachyear.

D.Alongperiodwhendeathratesexceedsbirthratesandthenashortperiodwithhigherfertilityandlowermortality.

2.Duringthefirstperiodofdemographichistory,societieswereoftenindangerofextinctionbecause___.

A.onlyoneintenpersonscouldlivepast40.

B.therewashighermortalitythanfertilityinmostplaces.

C.itwastoodangeroustohavebabiesduetothepoorconditions.

D.ourancestorshadlittleenthusiasmformorechildren.

3.Whichstatementistrueaboutpopulationincrease?

A.Theremightbeanincreaseof2.2billionpersonsfromnowtotheyear2000.

B.About50,000babiesareborneverysixhoursatpresent.

C.Between8000BCandthepresent,thepopulationincreaseisabout80,000,000personseachyear.

D.Thepopulationincreasedfasterbetween8000BCand1650thanbetween1650andthepresent.

4.Theauthorofthepassageintendsto___.

A.warnpeopleagainstthepopulationexplosioninthenearfuture.

B.comparethedemographicgrowthpatterninthepastwiththatafter1650.

C.findoutthecauseforrapidincreaseinpopulationinrecentyears.

D.presentusaclearandcompletepictureofthedemographicgrowth.

5.Theword“demographic”inthefirstparagraphmeans___.

A.statisticsofhuman.

B.surroundingsstudy.

C.accumulationofhuman.

D.developmentofhuman.

翻译训练:

筷子(chopsticks)是中国传统的独具特色的进食工具(diningutensils),至今已有数千年的历史。筷子在古代被称为“箸”,大约从明朝开始才有了“筷子”的称呼。筷子多为竹子制成,也有用木头、象牙(ivory)、金属或其他材料制作而成。它要么上方下圆,要么上下全圆而上粗下细。不管其形状如何,筷子必须是成对使用的,并且两只筷子的大小长短要相同。筷子是中国人日常生活的必备工具,它的发明充分反映了中国人民的智慧。

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